Nothing in that marvelous display of learning changes the FACT that the states were formed at the behest of the Continental Congress, the embryo of the Nation.
And the Continental Congress was formed at the behest of the individual colonies, so there.
So long as we date the independence of the whole to July 4, 1776 - and I believe you'll find it rather difficult convince much of anyone otherwise - the irrefutable reality of the timeline indicates that individual state independence from Britain had already been declared in multiple cases over the previous month. Virginia ceased to be a colony and became a Commonwealth, or State, in June of 1776. Acting as representatives of that new Commonwealth, her delegates subsequently voted in favor of independence for the whole of the colonies and states in July.
In that case, please provide the documentation of the act of Congress that established the states, set their boundaries, established their state constitutions, setup their electoral processes, &c.
Secondly, if each state were a permanent part of some mythical union, ratification of the Articles and Constitution would be unnecessary. ONLY independent, sovereign states/nations would have the need to ratify.